129114647 has 2 divisors, whose sum is σ = 129114648. Its totient is φ = 129114646.

The previous prime is 129114631. The next prime is 129114743. The reversal of 129114647 is 746411921.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 129114647 - 2⁴ = 129114631 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129114607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64557323 + 64557324.

It is an arithmetic number, because the mean of its divisors is an integer number (64557324).

Almost surely, 2^129114647 is an apocalyptic number.

129114647 is a deficient number, since it is larger than the sum of its proper divisors (1).

129114647 is an equidigital number, since it uses as much as digits as its factorization.

129114647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 35.

The square root of 129114647 is about 11362.8626234765. The cubic root of 129114647 is about 505.4270765541.

The spelling of 129114647 in words is "one hundred twenty-nine million, one hundred fourteen thousand, six hundred forty-seven".